SPACI score report for 2g83 in ASTRAL 2.08:

PDB Entry: 2g83
SPACI score: 0.12
AEROSPACI score: 0.12

Experiment type: XRAY
Resolution: 2.8
R-factor: 0.269
PCK1 PROCHECK Ramachandran: 1
PCK2 PROCHECK Chi-1 angle: 4
PCK3 PROCHECK H-bonds: 3
WCK1 WHAT_CHECK Packing: -2.966
WCK2 WHAT_CHECK Ramachandran: -6.871
WCK3 WHAT_CHECK Chi angles: -6.139
WCK4 WHAT_CHECK Backbone: -3.096

Note: Here are links to pages about PROCHECK and WHAT_CHECK.

Here is the full WHAT_CHECK report on this protein (linked from the WHAT_CHECK site).